Silo door



c. the s taves, whereupon downwardpull of the; "l

' staves.

Vdistance between the plates 26 Vand the door l() being normally less than the thickness 0f the In'rockingthe levers 2O they maybe pushed 26 forwardly and up onto thev frontV faces of levers onto engagement withithebracket 29, causes the springs 19 tobelfurth'er com-v I pressed so as to yieldingly draw the doorlO snugly up against'the Vstaves 25and16 and bars 32 to:V effectivelyv close y:the` silo :opening and seal the line of contact of the door on the' A silo members -by -compression o fjthe felt therethe levers .2O lare' eng-aged inthe Lbracket 29, :they lie ina :horizontalline with their Amaj or vportion spaced outwardly! Efrom lthe face offthefdoor 10. @ne Kd oor being above the other in the usual silo construction,

theseflevers 2O,Y so positioned,serveexeellently While Vwe 5havehere describedfand shown f 'our Vinvention fin' the best form vIiowknovvn to us, 'it `1is obvious that Astructural changes may 2be :made-in that form lwithout dep arisingfrom y `do not-desire to be limited :to that-precise' fthe spirit ofthe invention, and-we, therefore,

' f form, nor anymore 'thanlmay befrequiredby Vche following-claims.-1

- cured'theretdandmeans separate from' the levers permitting-said levers to beV rocked '-'b'oth" normally and parallel to the door.

2. In asilo, a' door, afpair of levers pivoted` between their arms,`spac'ed apart one 'fromy the other on the 'fdoor'and rockably rocked both v normally .and parallel to the Vdoo`r,`and a 'center-,bracket adapted to receive andsupport the ends of'said levers Vtherein." v i y -et, andajcenter 'bracket adapted .to

'thefinnerend ofthelever therein? j secured thereto, and spring meansseparate from thelev'ers permitting said 'levers' tobe 3. *In-a" silo door, a clampingdevice coinfprisingalever, a bracket, spring means separate 'from the levers yieldingly supporting saidlever in pivoted contact withsaidibrackf' 4,In a .silo having membersfaboutan `opening against -zwh'ich a door. may be posidoor,` laflever .pivotal-ly'carriedon the brack- 1. knl esile, a doer, a -paif of level-S; `piv-V -oted between fth'eir arms spaced apart 'one fromI theother on the `door and rockablyse-j sideV of one of said members removed from the' door and the lever rocked on said first bracket and brought over and engaged in said center bracket topull'saiddoor` compressively against said members by reason Vof said yielding means, inwardly towardithedoor l0 to rockth'e plates apart lever brackets,'a lever pivoted on each `of said brackets having a' short outer end and a long inner end, spring means yieldinglyfretainingfsaidlevers on said brackets,and a center .bracket having a pocket thereon adapted tore'ceive andthe inner ends lof said jleversto retain the 4v levers an a continuous v,horizontal line. 'F vf 6.",In" a*silo,=member`s along an opening therein, a" door/adapted tofclosesaid opening and lapover sa1dmembers-from thefinside ofthe isilo, aV pair of Vhorizontally spaced ap'artflever brackets, a leverpivoted'onleach -of' saidjbrackets .having fa 'short Vouter -end anda long inner end,'sp`ring means yieldingly retaining saidlevers on saidj-bracketa'fand acenter bracket having a pocket ythereon v adapted to. receive 'andV holdl'ftheV inner ends of said levers to retain the :levers in acontinuous horizontal line, and a `cam @face on fthe -upper :part` of said center bracket v:whereby A the inner'ends roffsaid levers .may :be slidinglyA guided there'overV outwardly ifrom :the door; and downwardlyinto said pocket when the.. s'hortzendslof :the VY:levers are positioned on thefoutside ofV said openingmembers :to yieldingly innove Vthe leversioutwardly.ont said lever brackets fby Vovercoming said Jrneans i c 7.` Ina s1lo,a door, a pair of leverspivoted loetween .their armsfspacedapart yone from the other on the door and rockablysecnred thereto', andrlmea'ns :permitting:saidlevers to be rocked both normally and parallel g-to'the door, al :center "bracket Yo-n'the door 'zand a1 cam face-'on said :center braclretfover which the en'dsof said `:levers may Abe moved."

' 8, Ina silo,faldoorfaapairsof levers' pivoted between theirarms spacedfapart .one from :the otherf. on the door and"lrockablyv secured thereto, and means separate from the' #levers frictionaflly retaining said leversat selected 

